<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
    </style>
</head>
<body>
<div>
    <span class="c">s1</span>
    <input type="text"/>
    <a href="" class="c">a1</a>
</div>
<div>
    <span>s2</span>
    <input type="text"/>
    <a href="">a2</a>
</div>
<div>
    <span>s3</span>
    <input type="text"/>
    <a href="">a3</a>
</div>
</body>
<script src="myJqueryannotation2.4.js"></script>
<script>

    jQuery.extend({});
    //属性模块

</script>
<script>
//    console.log($('div').html());
//    console.log($('div').html('嗯哼'));
//    console.log($('span').text());
//      $('span').text('我是span');
//console.log($('span').text(''));
//console.log($('span').siblings());
//console.log($('span').siblings('a'));
//console.log($('span').siblings('.c'));
//console.log($('input').next());
//console.log($('input').next('.c'));

//    $('div').attr('backgroundColor','red');
//    $('div').attr('height','100').attr('width',100);
//    $('div').attr('backgroundColor','red');
    $('div').attr({'background':'red','width':'200',"height":"100"});
</script>
</html>